Thread-guide for sewing-machines.



H. T. WERDEN.

THREAD GUIDE FOR SEWING MACHINES.

4 APPLICATION FILED FEB. 16. 1815. 133.9%.

Patentefl Nov. i, 1916.

HENRIETTA T. wnannn, or new rom n. Y.

THREAD-GUIDE FOR SEWING-MACHINES.

mosses.

Specification of Letters Patent. P t t 1m '7, 191

Application filed February 16, 1915. Serial No. 8,537.

chines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in thread guides for sewing machines, the object of the invention being to provide a simple and eflicient device which may be readily attached to the head of a sewing machine in proximity to the supporting means for the spool or spools and operate to effectually guide the thread without undue frictional resistance and in a manner to prevent convolutions of the thread from escaping from the ends of the spool and becoming entangled with the spool support or other adjacent parts of the machine.

With this and other objects in view, the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings; Figure 1 is a perspective view of a portion of the head of a sewing machine, showing the application of my improvements thereto; Fig. 2 is a plan view, and Fig. 3 is an enlarged face view of one of the guide posts.

I 1 represents a portion of the head of a sewing machine, upon which brackets 2 are located. said brackets being spaced apart and connected by a plate 3, which is secured upon the headl. To each bracket 2, a U- shaped yoke 4 is pivotally attached so that its mem er 5 may constitute a post for the accommodation of a spool 6.

A plate 7 is disposed upon the plate 3 and secured thereto and to the head of the machine by 'means of a screw 8. Respective end portions of the plate 7 are bent so as to be disposed in a somewhat higher plane than that of the body of the plate and project over the forward portions of the brackets 2 in position to receive and constitute supports 9 for the spools 6.

The spool supporting portions 9 of the plate 7 are made with forwardly projectingarms 10 which are made somewhat convergent toward a line passing through the arm of the machine. At the free forward ends of the convergent arms 10, guide fingers or posts 11 project upwardly therefrom and are preferably made integral therewith. Each guide finger or post 11 is provided near 1ts upper end with a guide hole 12 for thread 13, and with an entrance slot 14 to direct said thread into the guide hole, and each guide finger or post is provided near one edge and approximately centrally between its ends with a" guide hole 15 to which access may be had through a slot 16. Thus each guide fingeror post will accommodate threads from spools of different heights and will serve to so guide the threads as to prevent convolutions of the same from escapmg past the ends of the spool where they would be liable to become entangled with adjacent parts. In order to guard against accidental escape of the thread from the holes 12 in the guide posts, each of said holes is made heart-shaped as shown in Fig. 3, the slots 14 through which the thread is entered, being made to communicate with the center of the upper portion of the heartshaped hole. With such construction it would be difiicult for the thread to accidentally find its way out of a guide hole through the entrance slot.

It will be observed that each guide finger or post is flat and that as these fingers or posts project upwardly from the convergent arms 10 of the plate 7, they will be disposed at obtuse angles to the plate 7 and at right angles to converging lines extending from the spools to the forward portion of the arm or head of the machine. By thus disposing the guide-fingers or posts, the passage of the threads through the guide holes will be free and frictional resistance against the walls of the guideholes will be reduced to a minimum.

Slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limitin its scope and hence I do not wish to restrict myself to the precise details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. A thread guide for sewing machines, comprising a plate forming a spool rest and having a forwardly and inwardl projecting arm, and a fiat guide post disposed at right angles to the forward end of said arm and provided With guide holes for thread, whereby said post'wlll be disposed at right angles to a convergent line extending from the spool to the forward portion of a sewing machine head, and means for rigidly securing said plate to the sewing machine head. 2. A thread guide for sewing machines comprising a plate, means for rigidly securing said plate between its ends to the head of a sewing machine and constituting a plurality of spool rests, an integral horizontal arm projecting from each spool rest, and guide posts integral with said arms and extending upwardly from their free ends.

3. A thread guide for sewing machines, comprising a plate,-means for securing said ,plate to the head of a sewing machine and forming a plurality of spool rests, convergent horizontal arms projecting forwardly from said spool rests, and flat guide posts integral with the free ends of said convergent arms, said guide posts having guide holes for thread and having their flat faces at right angles to convergent lines extending from the respective spools to the forward portion of a sewing machine head.

In testimony whereof, I have signed this specification in the presence of two subscribing Witnesses.

HENRIETTA T. WEB-DEN. Witnesses:

LOUISE BURKE, L. BRESCHER. 

